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toysport · 01-27-2009, 06:08 PM

thinking of having my cylinder head ported/polished, do you need a tune for it to keep like a/f ratio with in range? thanx

01-27-2009, 06:08 PM	#1 (permalink)
toysport Registered User Join Date: Mar 2007 Posts: 44	Cylinder head mods thinking of having my cylinder head ported/polished, do you need a tune for it to keep like a/f ratio with in range? thanx